Self-threading slub catcher for automatic shuttles



Dec. 19, 1922. 1,439,442.

- R. PLUEMACHER.

SELF THREADING SLUB GATCHER FOR AUTOMATIC SHUTTLES.

FILED OCT. 3.192].

Patented Dec. 19, 1922.

UNITED STATES PATENT OFFICE.

HANNA SILK MILLS, OF NEW YORK,

n. Y., A CORPORATION or NEW ronxl SELF-THREADING SLUB OA'ICHEIB FORAUTOMATIC SHUTTLES.

Application filed October To all whom it may concern:

Be it known that I, REINHARD PLUE- MACHER, a citizen ofthe UnitedStates, residing at. Sunbury, in the county of Northumberland and Stateof Pennsfy1vania,have

invented certain new and use 111 Improvements in a Self-Threadin SlubCatcher for Automatic Shuttles, of w ich the following is aspecification, reference being had thereln to the accompanying drawings.I

This invention relates to a self-threadlng slub catcher for automaticshuttles, and the object of the invention is the provlslon of means,interposed preferabl between the threader block and the bobbln of ashuttle, for automatically receiving the thread or filling from thebobbin, as 'it is placed in or threaded through the threader. block, forevenly engaging the thread or filling to prevent several windings, orheavy places in the yarn resulting from imperfect spinning,

being woven into the goods, which weaving of a bunch of several windingsor heavy places would cause unsightly imperfections in the cloth. I

Another object of the invention is the provision of a slub catcher-thatis provided with a slot conforming to the shape and height of the slotof a threader block, the slot of the slub catcher being substantiallythe same width throughout its height.

\Vith this and other objects in view, my invention comprises certainnovel .combinations, constructions and arrangements of parts as will behereinafter-described, illustrated in the accompanying drawings, andmore particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a fragmentary, perspective view of a shuttle, showing myimproved slub catcher therein.

Figure 2 is a sectional view,'taken on line 22, Fig. 1, and looking inthe direction of the arrows, while Figure 3 is a similar view of anotherem bodiment of the present invention.

Figure 4 is a perspective viewof the slub catcher shown in 3.

Figure 5 is another embodiment of my invention.

Figure 6 is a diagram View, showing the way the thread or filling passesthrough the slub catcher and at all times, in its passage,

s, 1921. Serial 110. 505,057.

is retained taut, bearing snugly against the wall, or walls, of the slotin the slub catcher; Referring to the drawings by numerals.

1 designates the shuttle-body, 2 the bobbin, The slubcatcher and 3 thethreader block. comprises plate 4, formed of fibre or any suitablematerial. This plate (I use the word plate in a generic sense todesignate the body of the slub catcher) 4 is beveled from its upperleft-hand corner 5, on a gradual curve (Fig. '2), reducing the left wall6 of the slot 7 tarting from the right-hand top corner 8 of the plate 4,the top edge of the plate is beveled inwardly a considerable distancebut not\ so radically as the left-hand edge, until point 9 is reached,then the right-hand wall 10 of the slot 7 conforms to the shape of theWall 6; the slot 7 beginning at point 9 Writs bottom is the same widthso that the thread or filling 11- is hearing tightly against one or bothof the walls of the slot as the thread unwinds (Fig. 6) from the bobbin2. There willbe a slight movement of thethread up f and down the slot 7as the thread passes through threader block 3, and, of course, the slot7 must conform to the general slot 12 of the threader block 3 so thatthe threading of the eye and slub catcher will be accomplishedautomatically,

- and also any imperfections in the thread or filling, as it passes fromthe bobbin to the slub catcher and threader block, will bedetected orprevented from entering the goods being woven by the slub catcherstopping the thread, owing to the imperfection of said thread. It willbe understood that when a from bobbin 2,.

small thread is going through slot 7, as the thread unwinds from thebobbin (Fig. 6), at least one wall of slot 7 will be frictionallyengaged at all-times, and ifthe thread is large enough to somewhattightly fill the slot 7 both walls of said slot will be engaging,generally one wall more tightl than the other, owing to the position oft e unwinding thread, from the bobbin, as ex- ,pressed in Fig. 6, perfull and .A and B, respectively.

The slot 7 is formed at an angle to the perpendicular axis of the plate4, shown by dotted lines AA-, Fig. 2, because of the peculiar need fordrawing the thread through the slot in a taut condition, to

dotted lines,

prevent any imperfections from passing into the plate 4 and then a'screw 15 is inserted through the body of the shuttle-body, with cur'elIn the embodiment the inner end of the screwin notch'14, se-' fasteningthe slub catcher in the shutt e-body 1. Y

shownlin Fig. 5, have placed auxiliary plates 16 againstthe primary"plate 4,'- these plates being pro' vided withelongated v slots 17,'through which screws 18 extend into the plate 4,

whereby the, plates '16 are'--adjustable 'f tO-'- ward each otherfor-increasing or decreasing the width ofthe slot 7 depending upon;-

"the size of the thread ,or'yarn'to' be employed in the weaving. Itwill, therefore, i 1 be seen that I have provided a slub catcher Y witha slot and '25 I i 1 'I use the termthread in-the foregoing means forcontrolling the Size of the slot.

J description in'a generic sense, .-meani ng any kind of thread, oryarn, or fi-lllng, or string,

that might be used for any'kind'of'weaving.

7 While I have described the preferred e m bodiments of my invention,and have illus- 1. In a' device of-the character the combination of ashuttle body, a bobbin trated the same in the accompanying. drawings,certain min'o'r chan es or alterations may appear to one skilled in theart to whlch this invention relates, during the extensive manufacture ofthe same and I, therefore, reserve the right to makesuch altera-,

' tionsor changes as shall fairly. fall .within the scope of theappended claims,

What I claim is: v v 4 described,

I. "in said shuttle body, a threader block in f said. shuttle body, aslub catcher in said body between said bobbin and said threader block,said slub catchercomprising a fiat one-piece plate provided upon itsuper edge at one corner with'an inwardly beve ed portion and upon itsupper edge at the opposite corneryvith an inwardly beveled por- 7 tionof lessdegree thanthe firstbeveled por- I tion,-- the. beveled portionsterminatin at one side of the central vertical axisvo the plate in athread 'receiving slot, as and. for

the purposes set .forth. J

.2. In a devicebfthe icharacterldescribed,

the ,cbmbination of. a shuttle body, a bobbin in said {shuttle body, athreader-"block in "said-shuttle body, a slub catcher in saidbodybetwee'n said bobbin and said'threader' block, said! slub catcher!comprising. a flat slot, and adjustable plates Lon said platelike bodyan i tiguous to the sides of 'the'slot for 'con-' having-theirinner'edges con plate-like body having a" thread-receiving trolling thesize of the :slot',' 'as and-for the purposes set forth.

said shuttle body, a slub catcher in said body between said bobbin an'dsaid threader block, said s'lub;'cat'cher comprising a oneieceplateprovidedwith a' thread-receiving slot, plates arranged at oppositesidesof sai slot forcontrolling its width, -and means on the plates. forholding the last-mentioned fplates'in difl'erent adjusted positions, asand for the purposes setforth.'

[41 In a device of the character described,

the combination of 'a, shuttle body,'a vbobbin and athreader blockinsaid body, said body having parallel vertically aligned grooves formedinternally thereof, a slub catcher comprising a flat plate-like bodyhaving its side edges fitting in said grooves retained in positionbetween said bobbin and said threader block, said slub catcher beingprovided with a vertically extending slot between its side edges, ascrew-receiving notch formed in one edge of the plate-like body, saidnotch fitting within one of said grooves, and a screw-carried by theshuttle body and extending into saidnotch, as and .for the purposes setforth.

In testimony whereof I hereunto aflix" my signature.

' REIN ARD PLUEM oHEii.

13.. In a device ofthe character described; the combination of a shuttlebody, a bobbin in said shuttle body, a threader .blockhin ot saidbodyywhereby theslub catcher is

